Draft: [#699] Find error in Reference tests

Description

After !998 (merged) was merged, two contracts, that now should pass the reference test, failed to do it. We need to figure out why, and fix the bug if it is possible

Related issue(s)

Resolves #

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Related changes (conditional)

• Tests (see short guidelines)

  • If I added new functionality, I added tests covering it.
  • If I fixed a bug, I added a regression test to prevent the bug from silently reappearing again.

• Documentation

  • I checked whether I should update the docs and did so if necessary:
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    • docs/
  • I updated changelog files of all affected packages released to Hackage if my changes are externally visible.

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